摘要
Pawlak近似精度是衡量粗集近似程度的重要指数[1],针对Pawlak近似精度没有考虑近似空间的颗粒结构,在此利用粒度的概念定义了具有颗粒结构的近似精度,讨论了该近似精度的粒度特征.
The Pawlak approximation accuracy is an important quantity that measure the imprecision of a rough set. However, it does not consider the granularity of the approximation space. In this paper a new accuracy of approximation for rough sets is proposed.
出处
《杭州师范学院学报（自然科学版）》
2007年第5期321-323,共3页
Journal of Hangzhou Teachers College(Natural Science)
关键词
粗集
近似精度
粒度
rough sets
approximation accuracy
granularity
